CN113688643B - Dual-code identity recognition system and method - Google Patents
Dual-code identity recognition system and method Download PDFInfo
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- AQCDIIAORKRFCD-UHFFFAOYSA-N cadmium selenide Chemical compound [Cd]=[Se] AQCDIIAORKRFCD-UHFFFAOYSA-N 0.000 description 1
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- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
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Abstract
The application provides a double-code identity recognition system and a method, wherein the system comprises the following steps: fluorescent markers which can generate different fluorescence spectrums under different excitation conditions; the laser emission device emits an encoded laser pulse sequence to the fluorescent mark loaded on the target to be identified based on the first encoding information; the optical signal receiving device is used for receiving a plurality of groups of fluorescence spectrums generated by the fluorescent mark under the excitation of the laser pulse sequence and analyzing the plurality of groups of fluorescence spectrums to obtain second coding information; and the information processor is used for inquiring a preset target coding list according to the second coding information to obtain the identity information of the target to be identified. The double coding mode in the scheme increases the complexity of identity coding compared with a single quantum dot fluorescence spectrum coding mode, strengthens the identity recognition characteristics and increases the difficulty of identity imitation.
Description
Technical Field
The application relates to the technical field of identity recognition, in particular to a double-code identity recognition system and a double-code identity recognition method.
Background
At present, the identity recognition technology is widely applied, and the current identity recognition technology mainly comprises radio recognition, millimeter wave recognition, laser recognition and other technologies. The laser identification technology has the advantages that: (a) The laser wavelength is short, the wave beam is narrow, and higher angular resolution and distance resolution can be obtained, so that the positioning accuracy of system identification is improved; (b) The laser has higher capability of resisting electromagnetic interference and antigen sub-radiation, which has important significance for an identity recognition system which is often threatened by electromagnetic interference; (c) The laser signal transmission channel is narrow, not easy to detect and has good confidentiality; (d) The laser modulation speed is high, the identification time is greatly shortened, and the safety is further ensured.
Although the advantages of the laser recognition technology are many, the conventional laser recognition technology has a risk of being interfered and deceptively deceived because the coding mode is relatively single.
Disclosure of Invention
The application aims to provide a double-code identity recognition system and a double-code identity recognition method, which strengthen identity recognition characteristics and increase the difficulty of counterfeiting identities by increasing the complexity of an identity coding mode.
The first aspect of the present application provides a dual-code identification system, comprising:
fluorescent markers which can generate different fluorescence spectrums under different excitation conditions;
The laser emission device emits an encoded laser pulse sequence to the fluorescent mark loaded on the target to be identified based on the first encoding information;
the optical signal receiving device is used for receiving a plurality of groups of fluorescence spectrums generated by the fluorescent mark under the excitation of the laser pulse sequence and analyzing the plurality of groups of fluorescence spectrums to obtain second coding information;
And the information processor is used for inquiring a preset target coding list according to the second coding information to obtain the identity information of the target to be identified.
The second aspect of the present application provides a dual-code identification method, comprising:
Transmitting the coded laser pulse sequence to a fluorescent mark loaded on an object to be identified based on the first coding information; the fluorescent marker can generate different fluorescence spectrums under different excitation conditions;
Receiving a plurality of groups of fluorescence spectrums generated by the fluorescent mark under the excitation of the laser pulse sequence, and analyzing the plurality of groups of fluorescence spectrums to obtain second coding information;
And inquiring a preset target coding list according to the second coding information to obtain the identity information of the target to be identified.
Compared with the prior art, the double-code identity recognition system and method provided by the application have the advantages that the coded laser pulse sequence is adopted to irradiate the fluorescent mark subjected to fluorescent spectrum coding, and the complexity of coding information combination fed back by the fluorescent mark is higher. By adopting the mode, the complexity of the identity coding is increased compared with the method which simply adopts fluorescence spectrum coding, the identity recognition characteristic is enhanced, and the difficulty of identity imitation is increased.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
FIG. 1 shows a block diagram of a dual-code identification system provided by an embodiment of the present application;
FIG. 2A is a schematic diagram of encoding fluorescence spectrum wavelengths of quantum dot identifiers according to an embodiment of the present application;
FIG. 2B is a schematic diagram of encoding fluorescence spectrum wavelengths of quantum dot identifiers according to another embodiment of the present application;
FIG. 3A is a schematic diagram of encoding fluorescence spectrum intensities of quantum dot identifiers according to an embodiment of the present application;
FIG. 3B is a schematic diagram of encoding fluorescence spectrum intensities of quantum dot identifiers according to another embodiment of the present application;
FIG. 4A is a schematic diagram of a laser encoding method according to an embodiment of the present application;
FIG. 4B is a schematic diagram of another laser encoding method according to an embodiment of the present application;
Fig. 5 shows a flowchart of a dual-code identification method according to an embodiment of the present application.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs.
In addition, the terms "first" and "second" etc. are used to distinguish different objects and are not used to describe a particular order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.
The embodiment of the application provides a double-code identity recognition system and a double-code identity recognition method, and the double-code identity recognition system and the double-code identity recognition method are described below with reference to the accompanying drawings.
Referring to fig. 1, which is a block diagram of a dual-code identification system according to an embodiment of the present application, as shown in the figure, the system 10 includes: fluorescent marker 100, laser emitting device 200, optical signal receiving device 300, and information processor 400; the laser emitting apparatus 200 may include a plurality of laser emitting units having different output wavelengths.
Fluorescent marker 100 may produce different fluorescence spectra under different excitation conditions.
The laser emitting device 200 emits an encoded laser pulse sequence to the fluorescent marker 100 loaded on the object to be identified based on the first encoded information.
The optical signal receiving device 300 is configured to receive a plurality of sets of fluorescence spectra generated by the fluorescent identifier 100 under excitation of the laser pulse sequence, and analyze the plurality of sets of fluorescence spectra to obtain second encoded information;
And the information processor 400 is configured to query a preset target coding list according to the second coding information to obtain the identity information of the target to be identified.
In one embodiment according to the present application, the system 10 may further include:
and the display device is connected with the signal processor and is used for displaying the identity information of the object to be identified.
In one embodiment of the present application, the fluorescent marker 100 is a coded quantum dot marker formed by plating multiple components of quantum dot thin film materials together, and fluorescent spectrum coding can be achieved by setting the presence or absence and doping concentration of each quantum dot material in the quantum dot marker.
In one embodiment of the present application, the laser emitting apparatus 200 includes: the encoding part 210 and the laser emitting part 220, the laser emitting part 220 includes a plurality of laser emitting units, wherein output wavelengths of at least two laser emitting units are different.
An encoding unit 210 for generating first encoded information according to a preset transmitting program;
Wherein the emission program is set based on emission parameters of the plurality of laser emission units, the emission parameters including at least one of timing, spectrum, and duration.
The laser emitting unit 220 controls the corresponding laser emitting unit to emit the encoded laser pulse sequence based on the first encoded information.
According to one embodiment of the present application, the first encoded information is encoded in a spectrum, the plurality of laser emitting units are output spectrum encoded, and the laser emitting unit controls at least one of the plurality of laser emitting units to emit laser pulses by the generated spectrum encoding.
According to one embodiment of the present application, the first coding information is of a type of time-series spectrum mixed coding, the plurality of laser emitting units are subjected to output spectrum and output time-series mixed coding, and the laser emitting unit controls at least one of the plurality of laser emitting units to emit laser pulses in time series according to the generated time-series spectrum mixed coding.
According to one embodiment of the present application, the first coding information is of a time-series spectrum duration mixed coding type, the plurality of laser emitting units are subjected to output spectrum, time-series and duration mixed coding, and the laser emitting component controls at least one laser emitting unit of the plurality of laser emitting units to emit laser pulses according to the time-series and duration according to the generated time-series spectrum duration mixed coding.
Specifically, the output wavelength of the laser emitting unit may be encoded, or the output wavelength and the output timing of the laser emitting unit may be encoded, or the output wavelength, the output duration, and the output timing of the laser emitting unit may be encoded. When the coded laser light emitted according to the above coding manner is irradiated to the fluorescent marker, a fluorescent spectrum containing corresponding coded information, such as a wavelength coded fluorescent spectrum, a wavelength time-series coded fluorescent spectrum, and a wavelength time-series coded fluorescent spectrum, can be obtained.
According to one embodiment of the present application, the laser emitting unit may be a quantum dot laser, a quantum cascade laser, a semiconductor laser or a micro solid state laser. The laser emitting unit may preferably be a semiconductor laser since the semiconductor laser has advantages of small size, high efficiency, low price, and the like.
It can be appreciated that the key technologies involved above are: a double-code laser identification technology for coding laser excitation coding quantum dots in a cooperative laser identification system.
(1) Coded quantum dot identification specification
The first code in the double-code identification technology refers to the fluorescence spectrum of the semiconductor nanocrystalline quantum dot output code.
Semiconductor nanocrystalline quantum dot materials generally refer to, but are not limited to, group II-VI or III-V semiconductor materials of the periodic Table of the elements, such as cadmium selenide (CdSe), cadmium sulfide (CdS), zinc selenide (ZnSe), zinc sulfide (ZnS), and the like, as nano quantum dot materials ranging in size from 1 nm to 100 nm.
The semiconductor nanocrystalline quantum dot material has excellent fluorescence luminescence characteristics. The laser corresponding to the wavelength of the corresponding peak position in the excitation spectrum of a certain semiconductor nanocrystalline quantum dot material is adopted to irradiate the quantum dot material, so that fluorescence with specific wavelength can be excited. Because of the stokes shift characteristics, the wavelength of the excitation laser is generally shorter than the fluorescence wavelength.
Depending on the quantum effect, the quantum dot mixture may be designed to emit fluorescence with spectral characteristics that are used to represent a set of data by pre-selecting parameters such as the different components that make up the quantum dot mixture, the quantum dot size, the doping concentration, etc. These specific spectral features are combinations of spectral wavelengths and intensities to achieve fluorescence spectral encoding.
The role of the encoded quantum dots is illustrated below with examples.
(A) Encoding fluorescence spectrum wavelength of quantum dot mark
For example, the quantum dot material is prepared into a film, and the quantum dot film material can be prepared into a near-transparent material due to the small thickness of the film layer. Each layer can be composed of different quantum dot components, and respectively corresponds to fluorescence spectra with different wavelengths, and the binary codes 0 and 1 are used for representing the existence of fluorescence with certain wavelength, so that fluorescence spectrum coding is realized.
As shown in fig. 2A, 4-component quantum dot thin film materials are plated together. Exciting the thin film material with laser light having wavelength lambda in(λin＜λ1) to produce laser light having center wavelengths lambda 1、λ2 respectively,
4 Wavelengths of fluorescence of lambda 3、λ4, at which point the fluorescence spectrum encodes information 1111.
As shown in fig. 2B, if the quantum dot materials corresponding to λ 3 are reduced, the quantum dot thin film materials of 3 components are plated together, and laser excitation with wavelength of λ in(λin＜λ1) is adopted, the excited fluorescence wavelengths become 3, the central wavelengths are λ 1、λ2、λ4 respectively, the fluorescence spectrum coding information is 1101, and the other cases are analogized.
(B) Encoding fluorescence spectrum intensity of quantum dot mark
For example, as above, the quantum dot material is prepared into a film, and the quantum dot film material can be prepared into a near transparent material due to the small thickness of the film layer. Each layer can be composed of different quantum dot components, and respectively corresponds to fluorescence spectra with different wavelengths, and the existence of fluorescence with certain wavelength is represented by codes 0 and 1, so that fluorescence spectrum coding is realized. Meanwhile, by predefining the doping concentrations of different quantum dot components, when excitation is received, the intensities of fluorescence spectrums generated by the quantum dot components are also different, and the intensities of the fluorescence spectrums can be encoded by using numbers 1,2 and 3 … ….
As shown in fig. 3A, quantum dot thin film materials of 4 components and the same doping concentration are plated together. The doping concentrations of the 4 quantum dot materials are the same unit quantity, and the laser with the wavelength lambda in(λin＜λ1) is adopted to excite the film material, so that fluorescence with the central wavelength lambda 1、λ2、λ3、λ4 and the same fluorescence intensity and 4 wavelengths are respectively generated, and the fluorescence spectrum coding information is 1111.
As shown in fig. 3B, if the quantum dot materials corresponding to λ 3 are reduced, the quantum dot thin film materials with 3 components and different doping concentrations are plated together, the doping concentration of the quantum dot material corresponding to λ 1 is 2 times of the unit amount, the doping concentration of the quantum dot material corresponding to λ 2 is 3 times of the unit amount, and the doping concentration of the quantum dot material corresponding to λ 4 is 3 times of the unit amount. By laser excitation with wavelength lambda in(λin＜λ1), the excited fluorescence wavelengths become 3, the central wavelengths are lambda 1、λ2、λ4 respectively, the fluorescence intensities are different, the fluorescence spectrum coding information becomes 2103, and the like.
(2) Coded laser specification
The second code in the double code recognition technology refers to the output of the code laser by the laser emitting device.
Due to stokes shift characteristics, the semiconductor nanocrystalline quantum dot absorbs short-wavelength and high-energy light and excites long-wavelength and low-energy fluorescence. Therefore, the excitation wavelength should generally be shorter than the fluorescence wavelength.
The laser characteristics (laser output wavelength, output timing, output duration) output by the laser emitting device are encoded. The function of the coded laser is illustrated below by way of example. As shown in fig. 4A. The dual wavelength code combination with excitation wavelengths lambda in1 and lambda in2 outputs lambda in1 before lambda in2, where lambda in1＜λ1,λ2＜λin2＜λ3. For the quantum dot material with 4 components and the same doping concentration in fig. 2A, when the output wavelength of the coded laser is λ in1, due to λ in1＜λ1, fluorescence with 4 wavelengths having center wavelengths of λ 1、λ2、λ3、λ4 is excited, so as to obtain a first set of fluorescence spectrum coding information: 1111. when the output wavelength of the coded laser is lambda in2, due to lambda 2＜λin2＜λ3 and limited by Stokes shift effect, only fluorescence of 2 wavelengths with the center wavelength of lambda 3、λ4 can be excited, so that a second set of fluorescence spectrum coded information is obtained: 0011.
It can be seen that, due to the adoption of the fluorescence spectrum (wavelength, intensity) coding and laser coding double-coding laser identification technology, the feedback spectrum information of the quantum dot material with 4 components in fig. 2A is 1111, 0011.
As shown in fig. 4B, for the quantum dot materials of 3 components and different doping concentrations in fig. 2B, the doping concentration of the quantum dot material corresponding to λ 1 is 2 times the unit amount, the doping concentration of the quantum dot material corresponding to λ 2 is the unit amount, and the doping concentration of the quantum dot material corresponding to λ 4 is 3 times the unit amount. When the output wavelength of the coded laser is lambda in1, due to lambda in1＜λ1, fluorescence with 3 wavelengths of which the central wavelengths are lambda 1、λ2、λ4 is excited, and a first set of fluorescence spectrum coded information is obtained: 2103. when the output wavelength of the coded laser is lambda in2, due to lambda 2＜λin2＜λ3 and limited by Stokes shift effect, only fluorescence with 1 wavelength and the center wavelength of lambda 4 can be excited, and a second set of fluorescence spectrum coded information is obtained: 0003.
It can be seen that, due to the adoption of the fluorescence spectrum coding and laser coding double coding laser identification technology, the spectrum information fed back for the 3-component quantum dot material in fig. 2B is 2103, 0003.
The double-code identity recognition system provided by the embodiment adopts the coded laser pulse sequence to irradiate the fluorescent mark coded by the fluorescence spectrum, and the complexity of the combination of the coded information fed back by the fluorescent mark is higher. By adopting the mode, the complexity of the identity coding is increased compared with the method which simply adopts fluorescence spectrum coding, the identity recognition characteristic is enhanced, and the difficulty of identity imitation is increased.
Based on the double-code identity recognition system provided in the above embodiment, the present application further provides a double-code identity recognition method, please refer to fig. 5, which shows a flowchart of the double-code identity recognition method provided in the embodiment of the present application, and as shown in the figure, the method includes:
step S101: transmitting the coded laser pulse sequence to a fluorescent mark loaded on an object to be identified based on the first coding information; the fluorescent marker can generate different fluorescence spectrums under different excitation conditions;
Step S102: receiving a plurality of groups of fluorescence spectrums generated by the fluorescent mark under the excitation of the laser pulse sequence, and analyzing the plurality of groups of fluorescence spectrums to obtain second coding information;
step S103: and inquiring a preset target coding list according to the second coding information to obtain the identity information of the target to be identified.
In some embodiments according to the application, the method further comprises:
and displaying the identity information of the object to be identified through a display device.
According to some embodiments of the present application, the first encoded information may be generated according to a preset transmission program, which is set based on transmission parameters of a plurality of laser transmission units.
In some embodiments according to the application, the emission parameters include at least one of timing, spectrum, and duration.
According to some embodiments of the application, the generating the first encoded information according to a preset transmitting program includes:
performing output spectrum coding on the plurality of laser emission units to generate first coded information;
Or the plurality of laser emission units are subjected to mixed coding of output spectrums and output time sequences to generate first coding information;
Or performing mixed coding of output spectrum, time sequence and duration on the plurality of laser emission units to generate first coded information.
According to the double-code identity recognition method provided by the embodiment, the coded laser pulse sequence is adopted to irradiate the fluorescent mark coded by the fluorescent spectrum, and the complexity of the coded information combination fed back by the fluorescent mark is higher. By adopting the mode, the complexity of the identity coding is increased compared with the method which simply adopts fluorescence spectrum coding, the identity recognition characteristic is enhanced, and the difficulty of identity imitation is increased.
It is noted that the flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In the several embodiments provided by the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. The above-described apparatus embodiments are merely illustrative, for example, the division of the units is merely a logical function division, and there may be other manners of division in actual implementation, and for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some communication interface, device or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application, and are intended to be included within the scope of the appended claims and description.
Claims (10)
1. A dual code identification system comprising:
fluorescent markers which can generate different fluorescence spectrums under different excitation conditions;
The laser emission device emits an encoded laser pulse sequence to the fluorescent mark loaded on the target to be identified based on the first encoding information;
the optical signal receiving device is used for receiving a plurality of groups of fluorescence spectrums generated by the fluorescent mark under the excitation of the laser pulse sequence and analyzing the plurality of groups of fluorescence spectrums to obtain second coding information;
The information processor is used for inquiring a preset target coding list according to the second coding information to obtain the identity information of the target to be identified;
the laser emitting device includes: a coding part and a laser emitting part; the laser emission component comprises a plurality of laser emission units, and the output wavelengths of at least two laser emission units in the plurality of laser emission units are different;
the coding part generates first coding information according to a preset transmitting program, the transmitting program is set based on transmitting parameters of the plurality of laser transmitting units, and the transmitting parameters comprise at least one of time sequence, spectrum and duration;
The laser emitting part controls the corresponding laser emitting units to emit the coded laser pulse sequences based on the first coding information.
2. The dual code identification system of claim 1, wherein the system further comprises:
And the display device is connected with the information processor and is used for displaying the identity information of the object to be identified.
3. The dual code identification system of claim 1 wherein the fluorescent indicia is a coded quantum dot indicia formed by plating together a plurality of component quantum dot film materials.
4. The dual code identification system of claim 1, wherein the code type of the first code information is a spectral code, the plurality of laser emitting units are output spectral codes, and the laser emitting means controls at least one of the plurality of laser emitting units to emit laser pulses by the generated spectral code.
5. The dual-code identification system according to claim 1, wherein the code type of the first code information is a time sequence spectrum mixed code, the plurality of laser emitting units are subjected to output spectrum and output time sequence mixed code, and the laser emitting component controls at least one laser emitting unit of the plurality of laser emitting units to emit laser pulses according to time sequence according to the generated time sequence spectrum mixed code.
6. The dual-code identification system according to claim 1, wherein the code type of the first code information is a time sequence spectrum duration hybrid code, the plurality of laser emitting units are subjected to output spectrum, time sequence and duration hybrid codes, and the laser emitting component controls at least one laser emitting unit of the plurality of laser emitting units to emit laser pulses according to the time sequence and duration according to the generated time sequence spectrum duration hybrid code.
7. The dual code identification system of any one of claims 1 to 6, wherein the laser emitting unit is a quantum dot laser, a quantum cascade laser, a semiconductor laser, or a micro solid state laser.
8. A double-code identification method, comprising:
Generating first coding information according to a preset transmitting program, wherein the transmitting program is set based on transmitting parameters of a plurality of laser transmitting units; the emission parameters include at least one of timing, spectrum, and duration; the output wavelengths of at least two laser emission units in the plurality of laser emission units are different;
Transmitting the coded laser pulse sequence to a fluorescent mark loaded on an object to be identified based on the first coding information; the fluorescent marker can generate different fluorescence spectrums under different excitation conditions;
Receiving a plurality of groups of fluorescence spectrums generated by the fluorescent mark under the excitation of the laser pulse sequence, and analyzing the plurality of groups of fluorescence spectrums to obtain second coding information;
And inquiring a preset target coding list according to the second coding information to obtain the identity information of the target to be identified.
9. The double-code identification method of claim 8, wherein the method further comprises:
and displaying the identity information of the object to be identified through a display device.
10. The method for dual-code identification as set forth in claim 8, wherein the generating the first code information according to a preset transmitting program includes:
performing output spectrum coding on the plurality of laser emission units to generate first coded information;
Or the plurality of laser emission units are subjected to mixed coding of output spectrums and output time sequences to generate first coding information;
Or performing mixed coding of output spectrum, time sequence and duration on the plurality of laser emission units to generate first coded information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010426961.4A CN113688643B (en) | 2020-05-19 | 2020-05-19 | Dual-code identity recognition system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010426961.4A CN113688643B (en) | 2020-05-19 | 2020-05-19 | Dual-code identity recognition system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
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| CN2582064Y (en) * | 2002-12-10 | 2003-10-22 | 中国科学技术大学 | High-volume information encoding and decoding apparatus |
| JP4167991B2 (en) * | 2004-02-17 | 2008-10-22 | 三井造船株式会社 | Fluorescence detection device using coded modulation laser |
| US7202943B2 (en) * | 2004-03-08 | 2007-04-10 | National Research Council Of Canada | Object identification using quantum dots fluorescence allocated on Fraunhofer solar spectral lines |
| WO2010012046A1 (en) * | 2008-08-01 | 2010-02-04 | Encryption Technologies Corporation Pty Ltd | A code carrier and an apparatus for reading a code carrier |
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| CN101825570B (en) * | 2010-05-07 | 2012-11-14 | 中国医学科学院生物医学工程研究所 | Quantum dot coding fluorescence immunity analyzer |
| CN103063628A (en) * | 2012-12-13 | 2013-04-24 | 公安部第一研究所 | Excitation method for multiple fluorescent dyes |
| CN103398990B (en) * | 2013-07-26 | 2016-08-24 | 中国地质大学（武汉） | The system and method for target is moved in a kind of quick identification |
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| CN1445712A (en) * | 2002-12-10 | 2003-10-01 | 中国科学技术大学 | Method for coding and decoding high capacity information and its device |
| CN110058252A (en) * | 2019-04-26 | 2019-07-26 | 深圳市镭神智能系统有限公司 | A kind of laser transmitting-receiving device and laser ranging system |
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